Re: [PATCH v3 1/1] target: Add system emulation aiming to target any architecture
On 15/2/24 14:02, Manos Pitsidianakis wrote: On Thu, 15 Feb 2024 10:46, Philippe Mathieu-Daudé wrote: From: Philippe Mathieu-Daudé Add the 'any'-architecture target. - Only consider 64-bit targets - Do not use any hardware accelerator (except qtest) - For architecture constants, use: . max of supported targets phys/virt address space . max of supported targets MMU modes . min of supported targets variable page bits Build as: $ ../configure --target-list=any-softmmu \ --disable-hvf \ --disable-kvm \ --disable-nvmm \ --disable-tcg \ --disable-whpx \ --disable-xen Test as: $ qemu-system-any -M none,accel=qtest -monitor stdio QEMU 6.2.50 monitor - type 'help' for more information 6.2.50? :) Time passed... LGTM in general overall. In case this wasn't discussed already, would it be a good idea to name the target x-any if it ends up in a stable release? This will end in stable releases. Do you mean distribution releases? They don't include qemu-system-all and we don't use x-all. Why would a distrib want to include a pointless binary? :) Regardless of my inlined style comments: Reviewed-by: Manos Pitsidianakis Thanks!
Re: [PATCH v3 1/1] target: Add system emulation aiming to target any architecture
On Thu, 15 Feb 2024 10:46, Philippe Mathieu-Daudé wrote: From: Philippe Mathieu-Daudé Add the 'any'-architecture target. - Only consider 64-bit targets - Do not use any hardware accelerator (except qtest) - For architecture constants, use: . max of supported targets phys/virt address space . max of supported targets MMU modes . min of supported targets variable page bits Build as: $ ../configure --target-list=any-softmmu \ --disable-hvf \ --disable-kvm \ --disable-nvmm \ --disable-tcg \ --disable-whpx \ --disable-xen Test as: $ qemu-system-any -M none,accel=qtest -monitor stdio QEMU 6.2.50 monitor - type 'help' for more information 6.2.50? :) (qemu) info mtree address-space: I/O - (prio 0, i/o): io address-space: memory - (prio 0, i/o): system (qemu) info qom-tree /machine (none-machine) /peripheral (container) /peripheral-anon (container) /unattached (container) /io[0] (memory-region) /sysbus (System) /system[0] (memory-region) (qemu) info qtree bus: main-system-bus type System (qemu) info cpus (qemu) Signed-off-by: Philippe Mathieu-Daudé --- configs/devices/any-softmmu/default.mak | 9 + configs/targets/any-softmmu.mak | 3 +++ meson.build | 6 -- qapi/machine.json | 2 +- include/sysemu/arch_init.h | 1 + target/any/cpu-param.h | 13 + target/any/cpu-qom.h| 12 target/any/cpu.h| 24 .gitlab-ci.d/buildtest.yml | 20 hw/any/meson.build | 5 + hw/meson.build | 1 + target/Kconfig | 1 + target/any/Kconfig | 4 target/any/meson.build | 7 +++ target/meson.build | 1 + 15 files changed, 106 insertions(+), 3 deletions(-) create mode 100644 configs/devices/any-softmmu/default.mak create mode 100644 configs/targets/any-softmmu.mak create mode 100644 target/any/cpu-param.h create mode 100644 target/any/cpu-qom.h create mode 100644 target/any/cpu.h create mode 100644 hw/any/meson.build create mode 100644 target/any/Kconfig create mode 100644 target/any/meson.build diff --git a/configs/devices/any-softmmu/default.mak b/configs/devices/any-softmmu/default.mak new file mode 100644 index 00..dab0ce770e --- /dev/null +++ b/configs/devices/any-softmmu/default.mak @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0-or-later + +CONFIG_ISA_BUS=y +CONFIG_PCI=y +CONFIG_PCI_DEVICES=y +CONFIG_I2C=y +CONFIG_TPM=y +CONFIG_NUBUS=y +CONFIG_VIRTIO=y diff --git a/configs/targets/any-softmmu.mak b/configs/targets/any-softmmu.mak new file mode 100644 index 00..2c6cf1edd4 --- /dev/null +++ b/configs/targets/any-softmmu.mak @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-or-later + +TARGET_ARCH=any diff --git a/meson.build b/meson.build index c1dc83e4c0..f6aee8218b 100644 --- a/meson.build +++ b/meson.build @@ -46,7 +46,7 @@ qapi_trace_events = [] bsd_oses = ['gnu/kfreebsd', 'freebsd', 'netbsd', 'openbsd', 'dragonfly', 'darwin'] supported_oses = ['windows', 'freebsd', 'netbsd', 'openbsd', 'darwin', 'sunos', 'linux'] supported_cpus = ['ppc', 'ppc64', 's390x', 'riscv32', 'riscv64', 'x86', 'x86_64', - 'arm', 'aarch64', 'loongarch64', 'mips', 'mips64', 'sparc64'] + 'arm', 'aarch64', 'loongarch64', 'mips', 'mips64', 'sparc64', 'any'] cpu = host_machine.cpu_family() @@ -3043,7 +3043,9 @@ foreach target : target_dirs if default_targets continue endif -error('No accelerator available for target @0@'.format(target)) +if 'any-softmmu' not in target_dirs + error('No accelerator available for target @0@'.format(target)) +endif endif actual_target_dirs += target diff --git a/qapi/machine.json b/qapi/machine.json index d816c5c02e..8d3dcd5fb4 100644 --- a/qapi/machine.json +++ b/qapi/machine.json @@ -36,7 +36,7 @@ 'mips64el', 'mipsel', 'nios2', 'or1k', 'ppc', 'ppc64', 'riscv32', 'riscv64', 'rx', 's390x', 'sh4', 'sh4eb', 'sparc', 'sparc64', 'tricore', - 'x86_64', 'xtensa', 'xtensaeb' ] } + 'x86_64', 'xtensa', 'xtensaeb', 'any' ] } This array looks alphabetically sorted (before the `any`), might that be on purpose? ## # @CpuS390State: diff --git a/include/sysemu/arch_init.h b/include/sysemu/arch_init.h index 8850cb1a14..49bee75610 100644 --- a/include/sysemu/arch_init.h +++ b/include/sysemu/arch_init.h @@ -4,6 +4,7 @@ enum { QEMU_ARCH_ALL = -1, +QEMU_ARCH_ANY = -1, QEMU_ARCH_ALPHA = (1 << 0), QEMU_ARCH_ARM = (1 << 1), QEMU_ARCH_CRIS = (1 << 2), diff --git a/target/any/cpu-param.h b/target/any/cpu-param.h new file mode
[PATCH v3 1/1] target: Add system emulation aiming to target any architecture
From: Philippe Mathieu-Daudé Add the 'any'-architecture target. - Only consider 64-bit targets - Do not use any hardware accelerator (except qtest) - For architecture constants, use: . max of supported targets phys/virt address space . max of supported targets MMU modes . min of supported targets variable page bits Build as: $ ../configure --target-list=any-softmmu \ --disable-hvf \ --disable-kvm \ --disable-nvmm \ --disable-tcg \ --disable-whpx \ --disable-xen Test as: $ qemu-system-any -M none,accel=qtest -monitor stdio QEMU 6.2.50 monitor - type 'help' for more information (qemu) info mtree address-space: I/O - (prio 0, i/o): io address-space: memory - (prio 0, i/o): system (qemu) info qom-tree /machine (none-machine) /peripheral (container) /peripheral-anon (container) /unattached (container) /io[0] (memory-region) /sysbus (System) /system[0] (memory-region) (qemu) info qtree bus: main-system-bus type System (qemu) info cpus (qemu) Signed-off-by: Philippe Mathieu-Daudé --- configs/devices/any-softmmu/default.mak | 9 + configs/targets/any-softmmu.mak | 3 +++ meson.build | 6 -- qapi/machine.json | 2 +- include/sysemu/arch_init.h | 1 + target/any/cpu-param.h | 13 + target/any/cpu-qom.h| 12 target/any/cpu.h| 24 .gitlab-ci.d/buildtest.yml | 20 hw/any/meson.build | 5 + hw/meson.build | 1 + target/Kconfig | 1 + target/any/Kconfig | 4 target/any/meson.build | 7 +++ target/meson.build | 1 + 15 files changed, 106 insertions(+), 3 deletions(-) create mode 100644 configs/devices/any-softmmu/default.mak create mode 100644 configs/targets/any-softmmu.mak create mode 100644 target/any/cpu-param.h create mode 100644 target/any/cpu-qom.h create mode 100644 target/any/cpu.h create mode 100644 hw/any/meson.build create mode 100644 target/any/Kconfig create mode 100644 target/any/meson.build diff --git a/configs/devices/any-softmmu/default.mak b/configs/devices/any-softmmu/default.mak new file mode 100644 index 00..dab0ce770e --- /dev/null +++ b/configs/devices/any-softmmu/default.mak @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0-or-later + +CONFIG_ISA_BUS=y +CONFIG_PCI=y +CONFIG_PCI_DEVICES=y +CONFIG_I2C=y +CONFIG_TPM=y +CONFIG_NUBUS=y +CONFIG_VIRTIO=y diff --git a/configs/targets/any-softmmu.mak b/configs/targets/any-softmmu.mak new file mode 100644 index 00..2c6cf1edd4 --- /dev/null +++ b/configs/targets/any-softmmu.mak @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-or-later + +TARGET_ARCH=any diff --git a/meson.build b/meson.build index c1dc83e4c0..f6aee8218b 100644 --- a/meson.build +++ b/meson.build @@ -46,7 +46,7 @@ qapi_trace_events = [] bsd_oses = ['gnu/kfreebsd', 'freebsd', 'netbsd', 'openbsd', 'dragonfly', 'darwin'] supported_oses = ['windows', 'freebsd', 'netbsd', 'openbsd', 'darwin', 'sunos', 'linux'] supported_cpus = ['ppc', 'ppc64', 's390x', 'riscv32', 'riscv64', 'x86', 'x86_64', - 'arm', 'aarch64', 'loongarch64', 'mips', 'mips64', 'sparc64'] + 'arm', 'aarch64', 'loongarch64', 'mips', 'mips64', 'sparc64', 'any'] cpu = host_machine.cpu_family() @@ -3043,7 +3043,9 @@ foreach target : target_dirs if default_targets continue endif -error('No accelerator available for target @0@'.format(target)) +if 'any-softmmu' not in target_dirs + error('No accelerator available for target @0@'.format(target)) +endif endif actual_target_dirs += target diff --git a/qapi/machine.json b/qapi/machine.json index d816c5c02e..8d3dcd5fb4 100644 --- a/qapi/machine.json +++ b/qapi/machine.json @@ -36,7 +36,7 @@ 'mips64el', 'mipsel', 'nios2', 'or1k', 'ppc', 'ppc64', 'riscv32', 'riscv64', 'rx', 's390x', 'sh4', 'sh4eb', 'sparc', 'sparc64', 'tricore', - 'x86_64', 'xtensa', 'xtensaeb' ] } + 'x86_64', 'xtensa', 'xtensaeb', 'any' ] } ## # @CpuS390State: diff --git a/include/sysemu/arch_init.h b/include/sysemu/arch_init.h index 8850cb1a14..49bee75610 100644 --- a/include/sysemu/arch_init.h +++ b/include/sysemu/arch_init.h @@ -4,6 +4,7 @@ enum { QEMU_ARCH_ALL = -1, +QEMU_ARCH_ANY = -1, QEMU_ARCH_ALPHA = (1 << 0), QEMU_ARCH_ARM = (1 << 1), QEMU_ARCH_CRIS = (1 << 2), diff --git a/target/any/cpu-param.h b/target/any/cpu-param.h new file mode 100644 index 00..42e38ae991 --- /dev/null +++ b/target/any/cpu-param.h @@ -0,0